a-a aaa aae aam aap aas aax aea aee aem aep aes aex ama ame amm amp ams amx ap- apa ape apm app aps apx as- asa ase asm asp ass asx ax- axa axe axm axp axs axx eaa eae eam eap eas eax eea eee eem eep ees eex em- ema eme emm emp ems emx ep- epa epe epm epp eps epx es- esa ese esm esp ess esx ex- exa exe exp exs exx maa mae mam map mas max mea mee mem mep mes mex mma mme mmm mmp mms mmx mpa mpe mpm mpp mps mpx msa mse msm msp mss msx mxa mxp mxs p-p paa pae pam pap pas pax pea pee pem pep pes pex pma pme pmm pmp pms pmx ppa ppe ppm ppp pps ppx ps- psa pse psm psp pss psx pxe pxm pxs saa sae sam sap sas sax se- sea see sem sep ses sex sma sme smm smp sms smx spa spe spm spp sps spx ss- ssa sse ssm ssp sss ssx sxm sxs xaa xam xap xas xee xem xep xes xex xma xmm xmp xms xmx xpa xpe xpm xpp xps xsa xsm xsp xss xxp xxx